Cheapest return flights from Boston to Copenhagen in September from 363€

AirHint found the following cheapest return flights from Boston (BOS) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

08 Sep - 15 Sep Air Canada
01 Sep - 06 Sep Fly Play
04 Sep - 07 Sep Air Canada
16 Sep - 02 Oct Scandinavian Airlines direct
08 Sep - 15 Sep Scandinavian Airlines direct
02 Sep - 09 Sep Scandinavian Airlines direct
23 Sep - 30 Sep Scandinavian Airlines direct
29 Sep - 06 Oct Scandinavian Airlines direct
21 Sep - 28 Sep Air Canada
05 Sep - 12 Sep Icelandair
11 Sep - 18 Sep Icelandair
14 Sep - 21 Sep Icelandair
26 Sep - 03 Oct Icelandair
26 Sep - 03 Oct Scandinavian Airlines direct

Also check the deals for one-way flights from Boston to Copenhagen in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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